Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 7972093 | One-way clutch and a clamping structure for a handled tool using the same The present invention discloses a one-way clutch capable of eliminating the phenomenon of “teeth scraping”, comprising: ratchet member, pawl seat, pawl member, control outer sleeve and control member provided with control portion, wherein at least one of the con... | 07/05/2011 |
| 7296803 | Chuck The present invention relates to a self-tightened reverse locking chuck, comprising: a body member, a nut, jaws, a bearing, a drive sleeve, a front sleeve, an annular drive member, a movable ratchet wheel, a reverse locking ratchet wheel, a detent lock ring, a contr... | 11/20/2007 |
